Spectre Performance 68181 Stainless-Steel Flex Radiator Hose Kit Corrugations provide the hose with flexibility and prevent flattening or collapse Resists temperatures over 250 degrees Reinforced by a 304 grade stainless steel braid 1-3/4 inch inside diameter, 18 inches long Includes (2) red/blue Magna-Clamp high-quality aluminum hose fittings